http://neurosciencenews.com/epigenetics-adult-brain-8678/

Early Life Experiences Influence DNA in the Adult Brain

NEUROSCIENCE NEWSMARCH 23, 2018

Summary: Researchers report maternal behavior can change the DNA of her offspring. The findings, researchers say, could lead to better understanding of some neuropsychiatric disorders.

Source: Salk Institute.

An excellent introduction, in this article, to the expanding – and fascinating – field of Epigenetics.